Page 3225 of 4284

(5) Install the input hub/shaft assy. to the OD/Re-
verse piston/clutch retainer assy. (Fig. 264).
(6) Install input hub tapered snap ring (Fig. 265).(7) Install UD clutch piston (Fig. 266).
(8) Install UD piston return spring and Tool 5067
as shown in (Fig. 267).
(9) Using Tool 5059A and an arbor press, Install
the UD spring retainer and snap ring. (Fig. 268) (Fig.
269)Compress just enough to install snap ring.
CAUTION: Compress return spring just enough to
install snap ring.
Fig. 264 Install Input Shaft Hub Assembly
1 - PUSH DOWN TO INSTALL INPUT SHAFT HUB ASSEMBLY
(ROTATE TO ALIGN SPLINES)
2 - OD/REV. PISTON
Fig. 265 Install Input Hub Tapered Snap Ring
1 - INPUT SHAFT
2 - INPUT HUB SNAP RING (TAPERED SIDE UP WITH TABS IN
CAVITY)
3 - SNAP RING PLIERS
Fig. 266 Underdrive Clutch Piston
1 - PISTON
Fig. 267 Seal Compressor Special Tool 5067
1 - PISTON RETURN SPRING
2 - SPECIAL TOOL 5067
3 - INPUT SHAFT CLUTCHES RETAINER ASSEMBLY
RSAUTOMATIC - 41TE21 - 261
INPUT CLUTCH ASSEMBLY (Continued)
Page 3226 of 4284
(10) Install the UD clutch pack. Leave out upper
disc, until snap ring is installed (Fig. 270).
(11) Install the UD clutch flat snap ring (Fig. 271).
Fig. 268 UD Return Spring and Retainer
1 - UNDERDRIVE SPRING RETAINER
2 - SNAP RING
3 - SEAL
4 - PISTON RETURN SPRING
Fig. 269 Install UD Spring Retainer and Snap Ring
1 - ARBOR PRESS RAM
2 - SNAP RING PLIERS
3 - SNAP RING
4 - OD/REVERSE PISTON
5 - TOOL 5067
6 - TOOL 5059A
Fig. 270 Underdrive Clutch Pack
1 - CLUTCH PLATE
2 - ONE UD CLUTCH DISC
3 - CLUTCH DISC
Fig. 271 UD Clutch Flat Snap Ring
1 - UNDERDRIVE CLUTCH REACTION PLATE FLAT SNAP RING
2 - SCREWDRIVER
21 - 262 AUTOMATIC - 41TERS
INPUT CLUTCH ASSEMBLY (Continued)
Page 3227 of 4284

(12) Install the last UD clutch disc (Fig. 272).
(13) Install the OD/UD clutch reaction plate and
snap ring (Fig. 273) (Fig. 274). The OD/UD clutches
reaction plate has a step on both sides. Install the
OD/UD clutches reaction plate tapered step side up.
NOTE: Snap ring ends must be located within one
finger of the input clutch hub. Be sure that snap
ring is fully seated, by pushing with screwdriver,
into snap ring groove all the way around.(14) Seat tapered snap ring to ensure proper
installation (Fig. 275).
(15) Install input clutch assembly to the Input
Clutch Pressure Fixture±Tool 8391 (Fig. 276).
(16) Set up dial indicator on the UD clutch pack as
shown in (Fig. 277).
Fig. 272 Install Last UD Clutch Disc
1 - ONE UNDERDRIVE CLUTCH DISC
Fig. 273 OD/UD Reaction Plate
1 - OD/UD CLUTCH REACTION PLATE (STEP SIDE DOWN)
Fig. 274 Tapered Snap Ring
1 - OVERDRIVE/UNDERDRIVE CLUTCHES REACTION PLATE
TAPERED SNAP RING
2 - SCREWDRIVER (DO NOT SCRATCH REACTION PLATE)
Fig. 275 Seating Tapered Snap Ring
1 - OVERDRIVE/UNDERDRIVE CLUTCHES REACTION PLATE
TAPERED SNAP RING
2 - SCREWDRIVER
RSAUTOMATIC - 41TE21 - 263
INPUT CLUTCH ASSEMBLY (Continued)
Page 3228 of 4284

(17) Using moderate pressure, press down and
hold (near indicator) the UD clutch pack with screw-
driver or suitable tool and zero dial indicator (Fig.
278). When releasing pressure on clutch pack, indica-
tor reading should advance 0.005±0.010.
CAUTION: Do not apply more than 30 psi (206 kPa)
to the underdrive clutch pack.
(18) Apply 30 psi (206 kPa) to the underdrive hose
on Tool 8391 and measure UD clutch clearance. Mea-
sure and record UD clutch pack measurement in four
(4) places, 90É apart.
(19) Take average of four measurements and com-
pare with UD clutch pack clearance specification.
Underdrive clutch pack clearance must be 0.94-
1.50 mm (0.037-0.059 in.).
(20) If necessary, select the proper reaction plate
to achieve specifications:
UNDERDRIVE REACTION PLATE THICKNESS
4659939AB 5.837-5.937 mm (0.230-0.234 in.)
4659940AB 6.147-6.248 mm (0.242-0.246 in.)
4659941AB 6.457-6.557 mm (0.254-0.258 in.)
Fig. 276 Input Clutch Assembly on Pressure Fixture
Tool 8391
1 - INPUT CLUTCH ASSEMBLY
2 - INPUT CLUTCH PRESSURE FIXTURE 8391
Fig. 277 Set Up Dial Indicator to Measure UD Clutch
Clearance
1 - DIAL INDICATOR
2 - UNDERDRIVE CLUTCH
Fig. 278 Press Down on UD Clutch Pack and Zero
Dial Indicator
1 - DIAL INDICATOR
2 - UNDERDRIVE CLUTCH
21 - 264 AUTOMATIC - 41TERS
INPUT CLUTCH ASSEMBLY (Continued)
Page 3229 of 4284
(21) Install the OD clutch pack (four frictions/three
steels) (Fig. 279).
(22) Install OD reaction plate waved snap ring
(Fig. 280).(23) Install the OD/Reverse reaction plate with
large step down (towards OD clutch pack) (Fig. 281).
(24) Install OD reaction plate flat snap ring (Fig.
282).
Fig. 279 Install OD Clutch Pack
1 - OVERDRIVE CLUTCH PACK
Fig. 280 Install Waved Snap Ring
1 - OVERDRIVE REACTION PLATE WAVED SNAP RING
2 - SCREWDRIVER
Fig. 281 OD/Reverse Reaction Plate
1 - OVERDRIVE/REVERSE PRESSURE PLATE
2 - (STEP SIDE DOWN)
Fig. 282 Install Flat Snap Ring
1 - ARBOR PRESS RAM
2 - TOOL 5059A
3 - FLAT SNAP RING
RSAUTOMATIC - 41TE21 - 265
INPUT CLUTCH ASSEMBLY (Continued)
Page 3230 of 4284

(25) Measure OD clutch pack clearance. Set up
dial indicator on top of the OD/Reverse reaction plate
as shown in (Fig. 283).
(26) Zero dial indicator and apply 30 psi (206 kPa)
air pressure to the overdrive clutch hose on Tool
8391. Measure and record OD clutch pack measure-
ment in four (4) places, 90É apart.
(27) Take average of four measurements and com-
pare with OD clutch pack clearance specification.
The overdrive (OD) clutch pack clearance is
1.07-3.25 mm (0.042-0.128 in.).
If not within specifications, the clutch is not
assembled properly. There is no adjustment for the
OD clutch clearance.
(28) Install reverse clutch pack (two frictions/one
steel) (Fig. 284).
(29) Install reverse clutch reaction plate with the
flat side down towards reverse clutch (Fig. 285).
(30) Tap reaction plate down to allow installation
of the reverse clutch snap ring. Install reverse clutch
snap ring (Fig. 286).(31) Pry up reverse reaction plate to seat against
snap ring (Fig. 287).
(32) Set up a dial indicator on the reverse clutch
pack as shown in (Fig. 288).
(33) Using moderate pressure, press down and
hold (near indicator) reverse clutch disc with screw-
driver or suitable tool and zero dial indicator (Fig.
289). When releasing pressure, indicator should
advance 0.005-0.010. as clutch pack relaxes.
Fig. 283 Measure OD Clutch Pack Clearance
1 - DIAL INDICATOR
2 - OD/REVERSE REACTION PLATE
Fig. 284 Install Reverse Clutch Pack
1 - REVERSE CLUTCH PLATE
2 - REVERSE CLUTCH DISCS
Fig. 285 Install Reaction Plate
1 - REVERSE CLUTCH REACTION PLATE (FLAT SIDE DOWN)
21 - 266 AUTOMATIC - 41TERS
INPUT CLUTCH ASSEMBLY (Continued)
Page 3231 of 4284
(34) Apply 30 psi (206 kPa) air pressure to the
reverse clutch hose on Tool 8391. Measure and record
reverse clutch pack measurement in four (4) places,
90É apart.
Fig. 286 Install Reverse Clutch Snap Ring
1 - REVERSE CLUTCH SNAP RING (SELECT)
2 - SCREWDRIVER
3 - REVERSE CLUTCH REACTION PLATE
Fig. 287 Pry Up Reaction Plate to Seat Against Snap
Ring
1 - SCREWDRIVER
2 - SNAP RING
3 - SCREWDRIVER
4 - MUST RAISE REVERSE REACTION PLATE TO RAISE SNAP
RING
Fig. 288 Measure Reverse Clutch Pack Clearance
1 - DIAL INDICATOR
2 - REVERSE CLUTCH
Fig. 289 Press Down on Reverse Clutch and Zero
Indicator
1 - DIAL INDICATOR
2 - REVERSE CLUTCH
RSAUTOMATIC - 41TE21 - 267
INPUT CLUTCH ASSEMBLY (Continued)
Page 3232 of 4284

(35) Take average of four measurements and com-
pare with reverse clutch pack clearance specification.
The reverse clutch pack clearance is 0.89-1.37
mm (0.035-0.054 in.).Select the proper reverse
clutch snap ring to achieve specifications:
REVERSE CLUTCH SNAP RING THICKNESS
4377195 1.53-1.58 mm (0.060-0.062 in.)
4412871 1.77-1.83 mm (0.070-0.072 in.)
4412872 2.02-2.07 mm (0.080-0.082 in.)
4412873 2.27-2.32 mm (0.090-0.091 in.)
(36) To complete the assembly, reverse clutch and
overdrive clutch must be removed .
(37) Install the #2 needle bearing (Fig. 290).
(38) Install the underdrive shaft assembly (Fig.
291).
(39) Install the #3 thrust washer to the underdrive
shaft assembly. Be sure five tabs are seated properly
(Fig. 292).
(40) Install the #3 thrust plate to the bottom of the
overdrive shaft assembly. Retain with petrolatum or
transmission assembly gel (Fig. 293).(41) Install the overdrive shaft assembly (Fig.
294).
(42) Reinstall overdrive and reverse clutch as
shown.Rechecking these clutch clearances is
not necessary.
Fig. 290 Install No. 2 Needle Bearing
1 - #2 NEEDLE BEARING (NOTE 3 SMALL TABS)
2 - TABS UP
Fig. 291 Install Underdrive Shaft Assembly
1 - UNDERDRIVE SHAFT ASSEMBLY
2 - #2 NEEDLE BEARING
Fig. 292 Install No. 3 Thrust Washer
1 - #3 THRUST WASHER (NOTE 5 TABS)
2 - UNDERDRIVE SHAFT ASSEMBLY
21 - 268 AUTOMATIC - 41TERS
INPUT CLUTCH ASSEMBLY (Continued)